Helical Dead-end for OPGW
Helical strain clamp is mainly used in the connection of optical cable with strain town, corner tower and terminal tower. The material of clamp is aluminum clad steel wire or galvanized steel wire with good corrosion resistance; the wire has good mechanical and electrical properties for ensuring the clamp has stronger electrochemical corrosion resistance and anti-fatigue. The clamp grip is not smaller than 95% of rated tensile strength of optical cable. HelicaI strain clamp has characteristics of easy installation, simple and rapid, no special tool required, only one person could finish the operation; It could shorten the construction time greatly. improve the operating efficiency and reduce the operation cost. It is very simple to ensure the installation quality of clamp, inspect with naked eyes on the spot and special training not required. The whole complete set of helical strain clamp includes: external-layer helical armor rods, internal-layer helical armor rods, assorted connector and ground wire etc.
Single Helical Dead-end for OPGW
Usage and characteristics
OPGW optical cable strain clamp is mainly used in the connection between optional cable with breaking strength below 160KN with strain tower, corner tower and terminal tower.
The whole complete set of OPGW optical cable strain clamp includes: external-layer helical armor rods, internal -layer helical armor rods, assorted connector and ground wire etc.
Specification of dead-end for OPGW
| Type | Available Dia. of Cable Min(mm) | Available Dia. of Cable Max(mm) | Length of Helical Rods Inner (mm) | Length of Helical Rods Outer (mm) | Ref. Weight (kg) | Devastating strength (kN) |
|---|---|---|---|---|---|---|
| TF070/0880 | 7.9 | 8.8 | 1390 | 990 | 1.2 | 70 |
| TF070/1010 | 8.9 | 10.1 | 1390 | 990 | 1.3 | 70 |
| TF100/1140 | 10.2 | 11.4 | 1530 | 1110 | 1.7 | 100 |
| TF100/1280 | 11.5 | 12.8 | 1610 | 1190 | 2.4 | 100 |
| TF120/1410 | 12.9 | 14.1 | 1650 | 1230 | 2.6 | 100 |
| TF120/1550 | 14.2 | 15.5 | 1830 | 1350 | 2.9 | 120 |
| TF120/1730 | 15.6 | 17.3 | 2000 | 1470 | 3.6 | 120 |
| TF160/1920 | 17.4 | 19.2 | 2410 | 1790 | 4.7 | 160 |
| TF160/2110 | 19.3 | 21.1 | 2610 | 2010 | 5.2 | 160 |
Double Helical Dead-end for OPGW
Usage and characteristics
When OPGW optical cable applied in the special designed power line with big distance, high fall and large angle, double strain clamps could be used. Helical double strain clamp adopts internal-layer, medium layer and external layer helical armor rod design. This structure improved tensile strength greatly and no limitation from line corner. The whole complete set of clamp includes: helical armor rods, ground wire and assorted connector etc.
Specification of double layers dead-end for OPGW
| Type | Length of Structural Reinforcing Rods(mm) | Length of Middle rods (mm) | Length of Outer Rods(mm) | Ref. Weight (kg) | Devastating strength (kN) |
|---|---|---|---|---|---|
| TF160/**** | 2300 | 1700 | 1500 | 14.5 | 160 |
| TF210/**** | 2700 | 2100 | 1900 | 20.3 | 210 |
| TF250/**** | 3000 | 2300 | 2100 | 26.5 | 250 |
| TF320/**** | 3100 | 2500 | 2300 | 33.1 | 320 |
****: Cable diameter application